Revit二次開發-擷取項目原點坐标

思路:擷取目前文檔doc,1.先拿到目前模型中的項目原點坐标;2.再去那連結模型中項目原點坐标

using Autodesk.Revit.Attributes;
using System;
using Autodesk.Revit.UI;
using Autodesk.Revit.DB;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace TestCoordinates
{
    [Transaction(TransactionMode.Manual)]
    public class Class1 : IExternalCommand
    {
        public Result Execute(ExternalCommandData commandData, ref string message, ElementSet elements)
        {
           
            var uiDoc = commandData.Application.ActiveUIDocument;
            var doc = commandData.Application.ActiveUIDocument.Document;
            FilteredElementCollector collector = new FilteredElementCollector(doc);//拿到檔案doc
            //string mainModelName = doc.Title;//
            //var collectormain =collector.OfCategory(BuiltInCategory.OST_ProjectBasePoint).OfClass(typeof(BasePoint));
            //List<Element> MainProjectBasePoints = collectormain.ToElements().ToList();
            //BasePoint MainProjectBasePoint = MainProjectBasePoints.FirstOrDefault() as BasePoint;
            ProjectPosition projectPosition = MainProjectBasePoint.get_Parameter(BuiltInParameter position);
            //foreach (var e in MainProjectBasePoints)
            //{
            //    BasePoint basePoint = e as BasePoint;
            //    XYZ p = basePoint.Position;
            //    double x = p.X * 304.8;
            //    string x1 = string.Format("{0:F2}", x);
            //    double newX = Convert.ToDouble(x1);
            //    double y = p.Y * 304.8;
            //    string y1 = string.Format("{0:F2}", y);
            //    double newY = Convert.ToDouble(y1);
            //    double z = p.Z * 304.8;
            //    string z1 = string.Format("{0:F2}", z);
            //    double newZ = Convert.ToDouble(z1);
            //    XYZ newP = new XYZ(newX, newY, newZ);
               
            //}
            //過濾出含連結執行個體的收集器
            var collectorlink =collector.OfCategory(BuiltInCategory.OST_RvtLinks).OfClass(typeof(RevitLinkInstance));
            List<Element> RevitLinkInstances = collectorlink.ToElements().ToList();
            foreach (var e in RevitLinkInstances)
            {
                //拿連結模型的文檔Document
                RevitLinkInstance revitLinkInstance = (RevitLinkInstance)e;
                Document linkdoc = revitLinkInstance.GetLinkDocument();
                string linkdocname = linkdoc.Title;

                //拿項目基點(這個隻有一個)
                FilteredElementCollector BPcollector = new FilteredElementCollector(linkdoc);
                BPcollector.OfCategory(BuiltInCategory.OST_ProjectBasePoint).OfClass(typeof(BasePoint));
                List<Element> ProjectBasePoints = BPcollector.ToElements().ToList();
                foreach (var item in ProjectBasePoints)
                {
                    BasePoint linkbasePoint = item as BasePoint;
                    XYZ linkp = linkbasePoint.Position;
                    double x = linkp.X * 304.8;
                    string x1 = string.Format("{0:F2}", x);
                    double newX = Convert.ToDouble(x1);
                    double y = linkp.Y * 304.8;
                    string y1 = string.Format("{0:F2}", y);
                    double newY = Convert.ToDouble(y1);
                    double z = linkp.Z * 304.8;
                    string z1 = string.Format("{0:F2}", z);
                    double newZ = Convert.ToDouble(z1);
                    TaskDialog.Show("測試", $"選擇的連結項目基點是({x1},{y1},{z1}),項目名稱{linkdocname}");
                }
                //BasePoint ProjectBasePoint = ProjectBasePoints.FirstOrDefault() as BasePoint;
                //Coordinates = ProjectBasePoint.ToString();
               
            }
           
            return Result.Succeeded;
        }
    }
}